Slope stability monitoring in opencast coal mine based on wireless data acquisition system-a case study

  • Authors

    • Kumar Dorthi
    • K Ram Chandar
    2018-04-20
    https://doi.org/10.14419/ijet.v7i2.21.11829
  • Wireless data acquisition system (WDAQ), Zigbee, galleries, partition, HEMM, numerical modeling.

  • Real time monitoring of slope failures is necessary to maintain the stability of slopes in open cast mines. A 3-level structure of Wireless Data Acquisition System (WDAQ) is developed for real time monitoring of slope deformation and analysis of data. In this paper, a case study is presented in a large opencast coal mine. Deformation in the slopes with slope angles of 49o, 53o, 58o, 64o, 68o and 70o is monitored over old underground workings. The deformation caused due to the external load like movement Heavy Earth Moving Machinery (HEMM). Maximum deformation was 1.57mm for slope angle of 70o. It can be observed that the deformation increased with increased slope angle. This paper also describes that the validation of data based on WDAQ with the conventional method of monitoring as well as numerical modeling. The data obtained using WDAQ is in close to other two methods. The variation is around 11%.

     

  • References

    1. [1] Lin S, Liu J & Fang Y, “ZigBee based wireless sensor networks and its applications in industrialâ€, IEEE International Conference on Automation and Logistics, (2007), pp.1979-1983.

      [2] Desai UB & Jain BN, “Wireless sensor networks : technology roadmapâ€, A Project supported by Department of Information Technology, Ministry of Information and Communication Technology, India, (2007).

      [3] Dave TTC, Yuh-Show T & Kai-Chun Y, “Study of real-time slope stability monitoring system using wireless sensor networkâ€, Telkomnika, Vol.11, No.3, (2013), pp.1478-1488.

      [4] Kumar D & Ram Chandar K, “Application of wireless sensor networks in slope stability monitoring–a critical reviewâ€, The Indian Mining & Engineering Journal, Vol.55, No.3, (2016), pp.29-32.

      [5] Singh TN & Singh DP, “Prediction of instability of slope in opencast mine over old surface and underground workingsâ€, International Journal of Surface Mining and Reclamation, (1992), pp.81-89.

      [6] Kumar D, Ram Chandar K & Alston DS, “Effect of partition of overburden on stability of old underground workingsâ€, Proc. INDORCOK-16, IIT Bombay, (2016), pp.950-970.

      [7] Sastry VR & Ram Chandar K, “Effect of berm width on stability of slopes- a case study.â€, Minetech Journal, Vol.34, No.2, (2013), pp.3-12.

      [8] Ram Chandar K & Gowtham Kumar B, “Effect of width of highwall mining gallery on stability of highwallâ€, Int. Jl. Mining and Mineral Engineering, Vol.5, No.3, (2014), pp.212-228.

      [9] Ram Chandar K, Chiranth H, Mohan Y & Gowtham Kumar B, “Classification of stability of highwall during highwall mining: a statistical adaptive learning approachâ€, Int. Jl. Geotechnical & Geological Engineering, Vol.33, No.3, (2015), pp.511-521.

      [10] Ulusay R & Hudson JA, “The complete ISRM suggested methods for rock characterization, testing and monitoring: 1974-2006â€, Environmental and Engineering Geoscience, Vol.15, No.1, (2009), pp.47-48.

  • Downloads

  • How to Cite

    Dorthi, K., & Ram Chandar, K. (2018). Slope stability monitoring in opencast coal mine based on wireless data acquisition system-a case study. International Journal of Engineering & Technology, 7(2.21), 24-28. https://doi.org/10.14419/ijet.v7i2.21.11829